STY: Refactor check_if_whitespace_only (#2950) #210

	# This action assumes that there is a REL-commit which already has a
	# Markdown-formatted git tag. Hence the CHANGELOG is already adjusted
	# and it's decided what should be in the release.
	# This action only ensures the release is done with the proper contents
	# and that it's announced with a Github release.
	name: Create git tag
	on:
	push:
	branches:
	- main

	permissions:
	contents: write

	env:
	HEAD_COMMIT_MESSAGE: ${{ github.event.head_commit.message }}

	jobs:
	build_and_publish:
	name: Publish a new version
	runs-on: ubuntu-latest
	if: "${{ startsWith(github.event.head_commit.message, 'REL: ') }}"
	steps:
	- name: Checkout Repository
	uses: actions/checkout@v4

	- name: Extract version from commit message
	id: extract_version
	run: \|
	VERSION=$(echo "$HEAD_COMMIT_MESSAGE" \| grep -oP '(?<=REL: )\d+\.\d+\.\d+')
	echo "version=$VERSION" >> $GITHUB_OUTPUT

	- name: Extract tag message from commit message
	id: extract_message
	run: \|
	VERSION="${{ steps.extract_version.outputs.version }}"
	delimiter="$(openssl rand -hex 8)"
	MESSAGE=$(echo "$HEAD_COMMIT_MESSAGE" \| sed "0,/REL: $VERSION/s///" )
	echo "message<<${delimiter}" >> $GITHUB_OUTPUT
	echo "$MESSAGE" >> $GITHUB_OUTPUT
	echo "${delimiter}" >> $GITHUB_OUTPUT

	- name: Create Git Tag
	run: \|
	VERSION="${{ steps.extract_version.outputs.version }}"
	MESSAGE="${{ steps.extract_message.outputs.message }}"
	git config user.name github-actions
	git config user.email github-actions@github.com
	git tag "$VERSION" -m "$MESSAGE"
	git push origin $VERSION

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